Automatic stoker.



W. J. KENNBY & H. P. GROHN.

AUTOMATIC STOKER. APPLICATMI PILEDOGT. 12, 1903.

m 3 gem/K J W. J. KENNBY & H. P. GRdHN.

- AUTOMATIC STOKER. APPLICATION FILED 001212, 1908.

Patented Feb. 27, 1912.

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. AUTOMATIC STOKBR. APPLICATION FILED OUT-12, 1908. 1,018,976 PatentedFeb. 27, 1912.

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APPLIOATIOI FILED 001' 12 1908 Patented 27,

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W. J. KBN'NEY & P. GROHN.

AUTOMATIC S KER.

APYLIOATIOH mum 001'. 12, 1908.

Patentd Feb.27, 1912.

12 SHEETS-SHEET 8.

w m rkE i m w v I w i W. J. KBNNEYK: H.-P. GROHN.

AUTOMATIC STOKER.

APPLICATION FILED OUT. 12, 1908.

Patented Feb. 27, 1912.

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Patented Feb.-27, 1912.

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W. J. KENNEY & H. P. GROHN..

AUTOMATIG- STOKEB.

APPLIOATIOK Hum 001'; 12, 1908 Patented Feb. 27; 1912.

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W. J. KENNBY & H. P. GROHN.

I w'romum swoxnn APPLICATION FILED OUT. 12, 1908.

H is UNITED s'rA'rEs OFFICE WILLIAM J. KENNEY AND HENRY P. G-ROHN Q 3CHICAGO, ILLINOIS, ASSIGI IORS TO THE UNDERFEED STOKER COMPANY OFAMERICA. QF CHICAGO, ILLINOIS, A 003.

PORATION OF NEW JERSEY.

AUTOMATIG STOKER.

To all whom it at (19 comer-n vmay be operated and cleaned with greaterfacility than has heretofore been possible.

"The several views illustrating our invention are as follows:

Figure 1 shows diagran'nnatiea-lly the rear end of a-loeoinotive and atender, our improved stolter mechanism being shown in side elevation asattached to the same. Fig.

2 is a top view of the stoker mechanism shown in'Fig. 1. taken along thebroken line 2 2; Fig. 3 is an enlarged side view of the rnechanisn shownin Fig. l Contained within the furnat'e of the locomotive; Fig. is atransrerse vertiral seetion taken along" the broken line {-4 in Fig. 1.and shows the parts contained in Fi l in enlarged view;

F a rear end view of the tender. show. ing the blowers and operatingmechanism thert'rlor;;Fig.. 6 is a top view of a portion of the blowerapparatus s towing the ad jnstahlehood for direeti blower regardlesa ofthe direction of .move', mentof the locomotive: Fig. 7 is a side viewshowing" a fragment of one of the liars atthe sides of therotoits,illustrating the shape of the edges of these bars; Fig. 8 is a view fromthe interior-of one of the to torts and showing thoupper edge of a portion of the twyer blocks; Fig. 9 is a vertical longitudinal seetionofour Stoker construction as applied to a boiler of the stationary type;Fig. 10.is a. plan viewof the parts shown 111 Fig. 9, taken along thebroken line 2121; Fig. 1]. tea transverse sectional view of the. partsshown in Fig. 9, taken along ,thebroken line 22- -22; Fig. '12 is ti"view taken from the left, as shown in Fig. 9,

Specification of Letters Patent.

ing' retort.

the air to the of which elinkers and ashes fa-llin these plates asaresult of the com nstion will be 'advancedgtowiird the rear end of thePatented Feb. 27, 1912.

Application filed October 12. 1908. Serial No. 457,199.

of the mechanism employed to separate or out off the mass of clinker-sand ashes and remove the same from the reborts; Figs. 13

.and ll are detail views of the mechanism used to advance the clinkersand ashes along the retorts andtoward the rear ends thereof, as will heexplained later; Fig. 15' shows in top view a. modified form ofmechanism for separating or removing the clinkers and ashes from theretort, in which this moving mechanism consists of two cutter bars,instead of one. as shown in Fig. 12; Fig. 16 shows in end view the partsshown in Fig.

15; Fig: 17 is a vertical longitndinal section showing a modified formof stoker mechanism as applied to a stationary boiler; and Figs. 18 and19. are transverse seet-ional views showing the adaptability of thestoker ieehanism used in connection with boilers of the stationary typeby which one retortor a plurality of retor respectively; may

. he employed in a single f'mnaoe.

Similar reference eharaeters refer to similarparts throughout theseveral views.

Referringto Figs. 1, 3 and l, the l0comotive fire box is shown at 1,and; in this fire box, properly supported from the framework of theloeon'lot'ive, two retorts' 2 are plaeed. Eaeh retort hase'onnectedi'with its rear end a rain 3, by which fuel placed in thehopper 4 is fed into the correspond- In Fig. 1, the'looomotive fire hois shown in dotted-lines, as are the .said locomotive and tenderoutlines, since they are of use only to indicate the relative locat onof the several parts of the Stoker niecl'ianisni. Each retort, as-sho'wnin Fig.

2. has supported upon its upper edges a series of twyer blocks 5adapted. to direct: air from beneath the retortv into the fuel to beconsumed. This fuel as it 'enters the retort is deflected upward in theretort by the plate (5 supported above the entrance to the retort nearits front end. In connection with the twyer blocks 5, sliding plates 7are arranged to he moved 'reciprocallyin a direetion' lengthwise of theretort, a. result upon ' 8 and 8, respectively, which serve, as theplates '7 and 7 are reciprocatcd, to facilitate the removal of theclinkers and ashes in a manner to be described. All of the dogs a and 5in one series of plates are connected together, .zs indicated, by bars 9and 9 below the plates 7 and 7, so that a ree1procation of these bars 9and 9 sert es to rtate the dogs 8 and 8"- in the plates 7 and 7, as wellas to move the plates 7 and 7 longitudinally of the retorts 2.

Referring to Figs. 13 and 14, the detail construction and operation ofthe dog's 8 and 8 will be better understood. Each dog 8, as shown inFigs. 13 and 14, is supported upon a pivot- 8 carried by a plate 7 suchpivot being beneath the plate. The (log 8 is of such aconformation as toengage the bar 9 by the shoulder 8 when the bar 9 is moved to the right,as shown in-Fig. 14. This throws the projecting tooth 8 above the uppersurface of the plate 7, and a continued motion of the bar 9 to the rightcauses a motion of the dog 8 and plate 7 to the right, further rotarymotion of the dog 8 being girevented at this time by the engagement ofthe shoulder 8 and the bar 9. A pin 8" serves to connectthe dog, 8 andthe bar 9, so that the dog 8 is rotated as the bar 9 is reciproeated.hen the bar 9 is moved to the left, the dog 8 is rotated upon the pin 8until the tooth 8 is depressed even with the upper surface of the plate7, at which time the shoulder 8 engages the top of the bar 9 andprevents further rotation in this direction of the dog 8. As the bar 9is moved farther to the left, the dog 8 and plate 7 are together movedto the left. Thus it will be seen that the bars 5) and S) whenreeiprocated cause rotation of the dogsfi and S and the reciprocationof, the plates 7 and '7, the dogs 8 and 8" being rotated so as to throwthe teethof' the dogs upward when the bars 9 and 9" and plates 7 and 7are :nlvaneed to the right, as shown in Figs. 1, 2 and 5; while theteeth of the 'dogs 8 and 8 are depressed while the bars 9 and 5). andtheplates 7 and T are moved to the left.

The tops of the twyer blocks 5 are so disposed as to constitute inell'ect. a broken line, as shown in Fig. 8, and halts '10 disposedalong; the outeru-alls of. the tln'hnuc. lo

guide fthc plates 7 are similarly oont'oruud along their upper edges, asshown in Fin: 7. "The irregular eontorunition ot the upper edges of thebars 10 and the tops of the twyer blocks 5 serves to prevent the nuts-sof elinlters 'and ashes advanced by the mo- }tion to the right ofthedogs and plates being lrhwn backwith the dogs and plates when theyare mot-"ed to the left, and hence the reciprocationof the plates T and7' causes an intermittent advance of the mass of clinlrers and ashes. Asshown in Fig. l,

the bar 9 has secured at its left-hand end a link 1l cooperating withthcupper end of a lever 12 ivoted at 13 to the side of the retort 2. helower end of the lever 12 is connected by a link 14 with the upper endof a crank 15 secured to a shaft 16. A sec ond crank 17 secured upon theshaft 16 is connected by a link 18 with the piston rod 19 of a cylinder20. I

From the construction just described, it is apparent. that the bars!)and 9, secured by trains of mechanism as described to the shaft 16,which is supported transversely of the locomotive from its framework bybearings 21, may be reeiproentetl by the op eration of the cylinder 20as steam is communicated thereto. As shown in Fl". 2, a plate 22 extendsover the right-ban end of the retorts 2 and across the tire box, and theright hand edge ot this plate forms one member of a separating" 'orcut-oft mechanism by which the mass of cli'nlter's and ashes as advancedis removed from the retorts, and also from the stoker. The mechanismcooperating with the plate 22 consists in an anglllarlynnovable cutter23 pivoted v at its ends froin the frau'iework of the 1000- motive, and.provided with a shelf 24 secured to the cutting member 23 at'an. angleslightly greater than a right angle. The shelf EZ-l is oonneetwl by alink with oneend of a bell crank 90 pivoted at 27 from the trnnu-work ofthe locomotive, the other and of this belt crank bring connected by alink with (cranks 17 secured to the. sh aft 16.

From the mechanism just described, it is apparent that the operation ofthe cylinder :0 not only serves to reciprocate the bars 9 and 9, butalso serves to more the cutting, member 22-3 and its assoriated shelf 24angularly upon their support 29 in such a man nor that the cuttingmember 2?) will engage thei'nassotelinkers and ashes extending over theright-hand edge of the plate 22. The portion. ol the elinlnt-rs andashes thus re- .moved drops down into the ash box 30 ot the locomotive.

'lhe retorts 2 arelorated in the air box 31, which is separated from theash box S ll), so that 'air commuuiratml umlcr PltlHSlllO to the air box31 is to and upward through the tw ver blocks and trnnnot else-apethrough the ash. hox'illl. The run r end of the air box 231. isconnected by a flexible uo'ntiluit 32 to an air flue Ill") formed alongthe {lom'r ol" llurleuder Z'l'l.. The air line '3 terinirmtesin twol'nus 1h": 'adaplod to be driven by engines 5-H). as shown in Fig. 5. Tol aoililatv the alliuission ol" air to llu: l'ans 1-35. pivoted hootls37 are provided rat-h having a wing 2% s0 cured thurpto; as a. result.ol which the hood 37 is aulouulti ally shift d according to the dilootion'ol motion of llu lot-o1noiivo so as to prosent ils open sidetoward tho dire tion skilled in the art. What we claim is:

construction that will suggest itself to those ble plates arrangedlongitudinally of t 1e retort at the sides thereof for receivingclinkersand ashes, means for reciprocating said plates in thelongitudinal direction to movethe clinlters and ashes toward one end ofthe retort, and means operating during the backward motion of thereciprocuble plates to remove the clinkers and ashes at said end of theretort. v i

2. in combination in an automatic stoker, a retort for rereivin thet'uelto be consumerhreei rocable p ates extending longitudinally o theretort at the sides thereof for receiving clinkers and ashes, a shearingdevice at one end of the retort for removing clinkers and ashesprojecting beyond that end of the retort, and means for reci meatbutsaid plates so as to move the c iukers and ashes toward said device.

3. In oombination in a Stoker, a retort for receiving the fuclto beconsumed, plates extending longitudinally ofthe retort along the sidesthereof to receive clinkers and ashes, means for "reciprocating saidplat'cs in the longitudinal direction, vertically mov able memberscarried' by said plates, and means for raising and lowering saidmembers'duringlthc reciprocation of said plates.

4-. in combination in a Stoker, a retort for reeei'ving the. fuel to beconsumed, a plate extending himgitmlinally along the side of the retort,members movably mounted on said plate, and means for simultaneouslyreciprocating said plate in the longitudinal direo tion and raising andlowering said incu'ibers.

5. In rombiindion in asloker, a retort for,

receiving fuel to be co'l'isunied. a plate lying bcsidc and extendingli'mgitiulinally of. said tion retort. movable lifling-members mountedonsaid plate. and means for moving said plate .longilndmally ill onelllI'Pt'llOl] and simultancously ran-ling said lifting members and idplate in the opposite director moving an .lo vrrinsaid andsininltainionsly :7 members.

3. ln rombinuiionin u stoltcr, u retort for receiving l'uel to beconsumed, plates arrangrd beside the retort and extending longiiudinally thereof, lifting members mov ably mounted on the said ingmechanism constructe and arranged to (plates, and actuatward directionand simultaneously raise said lifting members and to move tlieplatesrearward y and simultaneously lower said lift ing members,"and means atthe'rear end of the retort for removing the clinkers and ashes when theyreach the rear end of the retort.

V 8.. In combination in a stoker,,a retort for receiving fuel to beconsumed, .plates arranged beside the retort and extendinglongitudinally thereof, lifting members mov ably mounted on the saidplates, and actuatmg mechanism constructed and arranged to move saidplates longitudinally in the forward direction and simultaneously raisesaid lifting members and to move the plates rear.-

Ward and simultaneously lower said liftmg members, and means operatedduring the backward motion of said plates toseparate that portion of themass of clinkers and ashes extending beyond the rear end of the retort.

9. In combination in a-stoker, a retort for receiving the'fucl to beconsumed, at fixed sl'iearing member arranged transversely of theretortat one end thereof, a movable shearing member adaptcd'tocoiiperate wlth the fixed shearing member to remove that portion of themass of clinkers and ashes extending beyond such end of theretort, andmeans arranged at the sides of the retort for receiving clinltors andashes-therefrom and moving them longitudinally of the retort toward saidshearing members.

10. in combination in astokcr, a retort for receiving the fuel to beconsumed, a fixed shearing member arranged transversely of the retort atone end thereof, a movable shearing member adapted to cooperate with lthe fixed shearing member to remove that portion of the mass of clinkersand ashes extending beyond such end of the retort, and means arranged atthe sides of the retort for receiving clinkers and ashes therefrom andmoving them longitudinally of the retort toward saidshcaring members,said shearing members having shearing edges di posed obliquelyrelatively to each other.

1,1. in combination'in a stoltcr, a retort for receiving the fuel to beconsumed, plates l i gbeside and extending longitudinally.

of the retort, oscillatory lilting .membcrs lnl'l'lt'tl by sa d plates,actuating means consow-nu and arranged to move said plate longitudinallyin the tin-ward direction and sinniltancously raise said lifting membersand to move said ph'des backwardand sunulluneouslyniscillalc saidlilting nicnibrl's lo lmvvrtheni. l 7

l2. in combination a furnace, al'nol rocalving retbrt insaid furnace, n.lixed shearing member extending transverselyacross direction andsimultaneously raising said i and ashes from the t-Wyer blocks and carryand ashes from the lawyer blocks and positively moving themlongitudinally toward the rear end of said retort, a n'iovable s, ear mgmember lying between the rear end oil i the retort and the rear wall ol'the furnace,

plates lying between the sidesv of the retort and the side walls of thefurnace, lilting members carried by said plates, and actualing meansconstructed and arranged to move said plates toward said shearingmembers and sinmltaneously raise said lifting 111e111- hers and more theplates away from said shearing members and simultaneously lower thelifting members.

13. In combination in a Stoker, a retort for receiving the. fuel to beconsumed, tw ver blocks supported by the retort there being a dischargepassage for chnkcrs and ashes at one end of the retort, devices arrangedat the sides of'the retort and movable longitudinally thereof forbreaking the elinkers saidj'end of the retort, and means for actuac ingsaid devices.

14. In combination in a stoker, a retort for receiving the fuel to beconsumed, twyer blocks supported by the retort, plates lying beside theretort and extending longitudinally thereof, lifting mei'i'ibers movablymounted on said. plates, and actuating means for moving said plateslongitudinally in one lifting members so as to break the clinkers themlongitudinally of the retort and to move said plates in the oppositedirection and simultaneously lower said liftlng members? 15. Incombination, a furnace, at retort an ranged within the furnace andhaving its rear end spaced apart? from the adjacent wall of [im furnaceto provide a discharge outlet for clinkcrs and ashes, means fordelireringtuel to the retort, supporting members bctweeuthe sides of theretort and the side ails of the furnace for receiving clinkers and ashesfrom the retort, osrillatiii'ythigs mounted upon said members and havingportions adapted to swing longitudinally above said members, and meansfor moving said dogs. I

16. In COl'lllJllHlllOll, a furnace, a retort arranged within thefurnace and having its rear'end spaced apart from the adjacent wall ofthe furnace to '1rovide a discharge outlet for clinkers and ashes, meansfor delivering fuel to the retort, and sup iorling members arrangedbetween the sides of the retort and 'the side Walls of the furnace forreceiving eli'nlrers and ashes from the retort and means associated withsaid supporting members for breaking up the clinkers and ashes andforcing them positively-toward the rear of the retort, and meansarranged adjacent to the rear end of the retort for ositively removingthe clinkers and ashes roni said supporting n1e1nl ers.

In witness whereof, we. hereunto subscribe our names, this 7th day ofOctober, 1908.

W l LL lAM J K ENN 1'1 Y. HENRY I. GROHN. \Vitnesses SYLVESTER S.llownim, ALnEn'r C. BELL,

